16 October 2017
⇐20171015 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171017⇒

NOAA
1 Active Region
12684

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W25N60
(198",792") 		E82-W57
(139) 		5.4 1.0 5.7e33
2 E16S14
(-262",-315") 		E26-W02
(28) 		2.9 -1.7 -1.3e33
3 E26S70
(-144",-931") 		E44-E14
(30) 		0.1 -0.6 -5.3e32
4 W29S26
(418",-497") 		W26-W31
(5) 		0.0 -0.6 -1.2e31

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA.

The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476.

An extensive copy of coronal hole properties are available at: solarmonitor.org/data.

The latest positions of the coronal holes are given in heliocentric co-ordinates, and the region positions are valid on 16-Oct-2017 23:30 UT .